This comprehensive Aprilia RS4 125 4T 2013 Factory Service Repair Manual provides a detailed guide to maintaining and repairing your motorcycle, giving you the knowledge and expertise of factory-trained technicians. The manual covers every aspect of your Aprilia RS4 125 4T 2013, from basic maintenance procedures to complex engine repairs. You'll find step-by-step instructions, clear illustrations, and detailed diagrams that guide you through every repair process. Learn how to diagnose and fix engine problems, understand different engine management systems, and troubleshoot electrical issues using detailed wiring diagrams. This manual provides the tools you need to confidently perform repairs yourself and save money on expensive shop labor costs. The manual covers: * **General Information:** Understanding your motorcycle's specifications and features. * **Fuel System:** Maintaining and repairing your fuel system, including injectors, fuel lines, and fuel pumps. * **Cooling System:** Diagnosing and fixing issues with your cooling system, including radiators, hoses, and coolant. * **Engine Top End:** Performing maintenance and repairs on your cylinder head, valves, and camshaft. * **Clutch:** Understanding and repairing your clutch system, including clutch plates, springs, and cables. * **Engine Lubrication System:** Keeping your engine properly lubricated by maintaining oil filters, oil pumps, and oil lines. * **Engine Removal/Installation:** Safely removing and reinstalling your engine for repair or servicing. * **Crankshaft/Transmission:** Diagnosing and repairing problems with your crankshaft, gears, and transmission. * **Wheels/Tires:** Maintaining and repairing your wheels and tires, including balancing, tire pressure, and wheel bearings. * **Final Drive:** Understanding and repairing your final drive system, including chain, sprockets, and shaft drive. * **Brakes:** Maintaining and repairing your brake system, including calipers, brake pads, and rotors. * **Suspension:** Understanding and adjusting your suspension system, including forks, shocks, and linkages. * **Steering:** Maintaining and repairing your steering system, including handlebars, steering head, and steering bearings. * **Frame:** Understanding your motorcycle's frame and performing maintenance on its components. * **Electrical System:** Troubleshooting and repairing electrical issues, including wiring, lights, and starter. * **Appendix:** Supplementing the manual with additional information and technical specifications. With this manual, you'll have the confidence to perform a wide range of repairs and maintenance tasks on your Aprilia RS4 125 4T 2013. You'll also gain valuable insight into your motorcycle's systems, enabling you to make informed decisions about its care and upkeep.

## Aprilia RS4 125 4T: A Sporty Entry-Level Machine The Aprilia RS4 125 4T, launched in 2013, is a sporty and accessible entry-level motorcycle designed to appeal to young riders seeking a thrilling and rewarding experience. This model, like its predecessor, boasts sharp, aggressive styling reminiscent of Aprilia's larger, race-winning machines, making it a head-turner on the road. The RS4 125 4T is powered by a liquid-cooled, single-cylinder, 4-stroke engine displacing 125cc. This powerplant, known for its lively performance, delivers a thrilling ride thanks to its responsive throttle and punchy acceleration. While not a powerhouse, the RS4 125 4T offers enough power for spirited riding on city streets and even some longer journeys. Beyond its attractive aesthetics and performance, the RS4 125 4T features high-quality components expected of Aprilia. These include a sturdy steel frame, a telescopic front fork, and a single rear shock absorber providing a balanced and enjoyable ride. The front disc brake and rear disc brake offer adequate stopping power while the RS4 125 4T's lightweight construction further enhances its agility. With its sharp handling and responsive engine, the RS4 125 4T provides a rewarding and involving riding experience, perfect for those looking to enter the world of motorcycling or sharpen their skills before graduating to larger machines. The Aprilia RS4 125 4T is an excellent choice for those seeking a stylish, fun, and affordable motorcycle that offers a taste of the Aprilia racing spirit.